Package eu.europa.esig.dss.token.digest

Class DigestInfoEncoder

java.lang.Object

eu.europa.esig.dss.token.digest.DigestInfoEncoder

public class DigestInfoEncoder
extends Object

This class is used to encode given digest to its ASN.1 DigestInfo representation. NOTE: This class is used on RSA signing.

Method Summary

Modifier and Type	Method	Description
static byte[]	encode(String algorithmOid, byte[] digest)	This method encodes the algorithmOid and digest combination into ASN.1 DigestInfo representation DigestInfo ::= SEQUENCE { digestAlgorithm DigestAlgorithmIdentifier, digest Digest }
static boolean	isEncoded(byte[] data)	This method verifies whether the data is ASN.1 DigestInfo encoded

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

encode

public static byte[] encode(String algorithmOid,
 byte[] digest)

This method encodes the algorithmOid and digest combination into ASN.1 DigestInfo representation DigestInfo ::= SEQUENCE { digestAlgorithm DigestAlgorithmIdentifier, digest Digest }

Parameters:

algorithmOid - String OID of the digest algorithm

digest - the digest to be encoded

Returns:

byte array containing a DER-encoded DigestInfo sequence

isEncoded

public static boolean isEncoded(byte[] data)

This method verifies whether the data is ASN.1 DigestInfo encoded

Parameters:

data - byte array to verify

Returns:

TRUE if the data is ASN.1 DigestInfo encoded, FALSE otherwise